Water-elevator.



S.` MURTA.

WATER ELEVATOR.

APPLICATION man JULY 14. 1913.

Patented May 22,1917.

:Eimmmm invento-1*: b; Ww

Samuel Muba muys.

Mbeeb .l

. scending colmn of Water, the water being MUR/TA, OFST. LOUIS, MISSOURI.

. WATERfELEVATOB.

To all whom zt may concern."

B e it known that I, SAMUEL MURTA, a-

citizen of the United States of America,

and a resident of the city of St. Louis and State of Missouri, r haveinvented certain new and useful 4Improvements in Water- Elevators,of whichthe following is a full,

clear, and exact description, 'reference being had to. the accompanying drawings,`form ina part of this specification.

y invention relates to water elevatorswherein a fluid under pressure is utilized to lift water', the present invention beingan improvement on the water elevator shown in Patent vNumber 1,016,085,issued to me January 30, 1912.

The object of pressed'air and which is so constructed that the air pressure is initiallyexerted on a de' forced downwardly .in a. pressure pipe, through an ejector, and thenupwardly so as y to draw water from a'well, located below the ejector. The pressure pipe is supplied with water through the medium of .a return pipe by which a portionof thefelevated water is returned to the ejector.

Figure I is a verticalI section of a water elevator'e'mbodying the features of my invention.

Fig. II lis an .enlarged vertical section l I f vtaken through theejector.

In the drawingszt 1 designates a discharge pipesecured to an ejector 2 and extending to a point above a reservoir 3. A pressure pipe 4, surrounding the discharge pipe, is seated on the v ejector 2 and provided atvits upper end with .astufling box 5 through which the discharge pipe passes. The pipes 1 and 4 as well as the ejector 2 are surrounded by a return pipe 6 which terminates at an abutment 7.

`8 and 9 designate intake pipes located below the abutment 7, the pipe 9 beingpro-` vided with inlet openings 10. 11 is a delivery plpe' forA conducting Water to the ejector 2.' Theupper-end ofthe pipe -11 is j check valve 13 1by a stem A14. 15 designates llocated in the ejector 2 and its lower end is slotted for the admission of water at points below the ejector 2.o A float 12 arrangedin the delivery pipe 11l 'is'connected to Ca a valve seat located below the check valve 13. In the practical use of I ny water elevator, an under pressure 1s dellvered throughan he present invention is to c producea water elevator operable by com- Specification of Letters Patent. Patented May 22, 1917, Application mea my 14, 1913. serial No.' 778,893.

f in the intake pipes 8 and 9, which draws water from the well W through the ejector 2, into the discharge pipe 1 and discharges said water into the reservoir 3. A por-` tion of thewater delivered to the reservoir passes out througli the overflow pipe 18 and the .remainder is permitted to return through pipe 19 to the return pipe 6. 20 designates a check valve for preventing the water from being forced upwardly in pipe 19. When the pressureiis relieved to stoprthe iow of water, .the check .valve 13 closes automatically to prevent. the elevated water from returning to the well. This relief may be eHected by stopping the pump land opening the relief port 17b ofv check valve 178L by hand. The Water in the return pipe 6 replaces lthe air in pressure pipe 4 and theI water in the pipe 19vand part ofthe water check valve provided with a relief may be used, such for instance asthat of patent to Horne No. 372071, already public property.

The inlet ports 16 'of-the ejector 2 are so formed that the telescoping pipes 1, 4

portsv being extended downwardly below pipe 4 to communicate with pipe 6. It will therefore be understood that the water in these pipes tends to seek a common level asl shownv in Fig. I; and that balanced columns of water are present in the three .pipes 1,` 4 and 6 when the air pressure is shut o lf. The'water is placed in motion by the application of pressure to the top of one of the balanced columns of water, namely, the column of 'water between pipes 1 and 4. The

Awater in the -discharge pi e 1 rises as the water between pipes 1 an 4 descends, and

and 6 communicate with each other, said l sure on one of the last named columns lof water will raise the water level in the'discharge pipe, so that the water will readily flow from the discharge plpe 1 in response to the air pressure in the pipe 4. This 1s particularly desirable in. starting the flow of water from deep wells'for it is an advantage instarting the `circulation to apply the air pressure :to the top of a column of water,- insteadv o f merely forcing air through the ejecton. v

The operation and advantage are comparable to the ancient practice and advantagev -of pouring water into thetop of a pitcher pump when starting the pumping operation',

the water furnishing a solid body, better adapted to produce an immediate and sure suction, by reason of its weight and non-attenuability, in pipes of a dlameter suitable forpumps of this character, than a gaseous body such as air, which, owing to its attenuwhich isto be used in balancing the columns of water in pressure pipe 4 and discharge pipe l when the air is shut oii'. This pipe 6 also serves as a convenient meansfor con-v ductmg water to the lower -end of the ejec-l tor 2. A stand pipe -21^is preferably, but not essentially,.connected to the return pipe 6, sald'stand pipe being extended upwardly naameo to a point where it will confine a column of waterv extendingto a plane near the Vupper'end of the discharge pipe 1. The water in stand pipe 21 aids in balancing the water in the'discharg'e pipe 1. The stand pipe also serves as a vent, permttingthe waterto rise or-fall in the return p'ipe 6 after the'air presta, the 'check valve "in the pressure pipe17 vmay sure has been shut oli'. 'l

-When the vair pressure is shutI be readily opened by hand, to relieve the pressure v in pipe. 4, the'reby,allowing .the

water to iow downwardly `in pipes 6, 19 and 21, and upwardly in the pipe 4:. The Water lin pipes 1, l and 6-then seeks a common levelto constitute-*the balanced columns of water to which I have previously referred.

I claim .v In a water elevator, the combination of an ejector, a discharge pipeleading therefrom, a pressure pipe leading thereto, a return pipe in communication with the ejector, an air supply pipe, a'check valve in saidair supply pipe, a relief device wherebyv the air ,inthe pressure -pipe may be exhausted when the ejector is not in operation, a reservoir located beneath the outlet end of the discharge pipe, a pipecommunicating between .v

the reservoir and the return pipe, and a check valve in said pipe, whereby the presv A sure pipe may be -recharged with water as the air is exhausted from the pressure pipe and the elevator be started with a Water charge impelled by air under'pressure and its operation continued without interruption by air under pressure. i

S 1I L MURTA..

In the resence of- E. LARK,

E. B. LINN. 

